Lamp construction



S. F. ARBUCKLE.

LAMP CONSTRUCTION.

APPLICATION HLED MAR. 14-, 1919.

1,376,599. Patented May 3,1921,

IN VEN TOR.

jwma 1. fleaucmz.

A TTORNEYS UNITED STA S PATENT OFFICE.

SAMUEL F. ARBUCKLE. OF INDIANAPOLIS, INDIANA, ASSIGNOR To UNITED STATES AUTOMOTIVE CORPORATION, OF CONNERSVILLE. INDIANA, A CORPOR OF DELAWARE.

LAMP CONSTRUCTION.

Application filed March 14, 1919.

T 0 all an 710m it may concern Be it known that I. Saucer. F. AnnUcKLn, a citizen of the United States, and a resident of Indianapolis, county of Marion, and State of Indiana, have invented a certain new and useful Lamp Construction; and I do herebv declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, in which like numerals refer to like parts.

This invention relates to electric headlights for automobiles, launches and the like. and more specifically to the construction of tilt-able or adjustable reflectors.

In the actual use of headlights or lamps using tiltable reflectors great difliculty has been found in preventingd-ust or moisture from seeping in to the lamp casing either through the joint made by the front glassv flector will be sealed against dust and moisture when in its adjusted position. This is accomplished by sealing flanges which are engaged and sealed by the reflector when in its adjusted position engaging therewith.

Still another feature of this invention is the manner of supporting or hinging the reflector, so as to be tiltable and adjustable in the lamp casing and frame, which permits a simplicity of construction which has considerable manufacturing advantages.

A further feature of this invention relates to a fluid actuated means for controlling the reflector, which consists of a bellows or collapsible disks which may be mounted be tween the reflectorand casing so as to take up aminimum amount of space and provide a maximum displacement. Such a construction would, in addition to these features, eliminate any possibility of leakage such as may occur in the use of-Ipistons, and would not necessitate the provision of lubricating means necessary in pistons and like fluid actuating mechanisms. The amount of space taken up by a bellows would be so small as to eliminate any necessity of re Specification of Letters Patent.

Patented May 3, 1921.

Serial No..282,680.

lamp. Fig. 4 is a section taken on the line 44 of Fig. 1.

There is shown herein a lamp casinglO formed of one piece and provided with a flat periphery 11 adjacent its open face. and an inturned flange 12. Adapted to fit snugly over the periphery 11 there is a lens holding rim or door 13 on which is secured a flange member or ring 14 in which the lens 15 is secured. A rim 16 is provided so as to be secured between the lens 15 and the inturned flange 12. which is provided with a recess in which a sealing member 17 is engaged so as to be squeezed between the inner surface of the lens and said rim so as to protect the lens from dust or moisture which may seep into the lamp. The rim 16 extends inwardly at the lower portion of the lamp. and is provided with an inwardly extending flange about its periphery, said flange extending upwardly at an angle to the lens. correspmiding to the angle at which the reflector is to be tilted. Lying adjacent to the rim 16 and in close contact therewith there is a flange member 18 which telescopes with said rim on the lower portion thereof and is provided with an inwardly turned flange 19 parallel to the lens 15 of the lamp.

The reflector 20 is provided with projections 21 on the lower side thereof which are adapted to extend through corresponding openings at the bottom of the flange member 18 on both sides of the pivotal center thereof so as to form pivotal hinges. The periphery of the reflector has an outwardly turned flange 22 which engages and seals against the flange 19 when the reflector is in the position shown in Fig. 1 and which en- .gages and seals against the flange of the member 18 when the reflector is in its forward position as shown in Fig. 2 or its normal position as shown in Fig. 1.

The lamp is furtherv provided with a lamp bulb 23, a lamp socket 24 extending through the rear of the reflector and connected electrically by the flexible wires 25. The return movement of the reflector to normal position is accomplished by the bellows 26 which are controlled by suction from the motor or other means through the conduit There is a spring 29 secured to the upper portion of the lamp casing and adapted to engage and exert a pressure against the projection 28 on the reflector for tilting it forward when the suction in the bellows is released and keeping the pivotal hinge in its proper position and preventing its dis-.

engagement. However, the spring 29 is adapted to be easily overcome by the suction of the bellows for returning the lamp to normal position from tilted position. Fig. 3 shows a modified form of protecting flange, wherein the flange 19 is recessed to receive a bead 30 on the upturned flange 22 of the reflector, whereby the reflector is always held in its properposition and protected from the elements.

The invention claimed is:

1. The combination with a lamp casing and a lens therefor, of a reflector within the lamp casing having an outwardly extending flange at its edge, a flange member carried in the lamp casing having a flange for engaging the reflector flange when in normal position, and a rim secured between said flange member and lens for engagin the reflector flange when in its forward position, and a gasket in conjunction therewith for protecting said reflector from dust and moisture.

2. The combination with a lamp casing, and a lens therefor, of a reflector within the lamp casing, a downwardly extending projection on the lower portion of said reflector, a flange member secured to the lamp casing having a flange for engaging the reflector flange when in normal position, through which said projection extends for pivotally mounting said reflector within said casing, a rim between said flange member and lens for engaging the reflector flange when in its forward position, and a gasket in conjunction therewith for protecting said reflector from dust and moisture.

3. The combination with a lamp casing,

and a lens therefor, of a reflector within the lamp casing having a downwardly extending projection on the lower portion thereof, means within said casing in which said projection is mounted for pivotally supporting said reflector and yielding means for retaining said prbjections in pivoted position for permitting it to be tilted within said casing.

4. The combination with a lamp casing and a lens therefor, of a reflector within the lamp casing, a reflector mounting, means on said reflector adapted to engage said mounting for pivotally supporting said reflector therein, and yielding means for holding said reflector in pivotal relation with said mount- 5. The combination with a lamp casing, and a lens therefor, of a reflector within the lamp casing, means on the lower portion of said reflector for pivotally supporting it within said casing, and yielding means for engaging said reflector for exerting a downward pressure thereon and holding it in its pivotally mounted position.

6. The combination with a lamp casing, and a lens therefor, of a tiltable reflector mounted within said lamp casing, yielding means for retaining said reflector normally in tilted position, and a bellows mounted between said reflector and easing adapted to be contracted for overcoming said yielding means for returning said reflector from tilted position.

7. The combination with a lamp casing, and a lens therefor, of a tiltable reflector mounted within the lamp casin means on the lower edge of said reflector or pivotally supporting it within said casing so as to be tiltable therein, and a bellows mounted between said reflector and casing for controlling the tilting movement of said reflector.

8. The combination with a lamp casing, and a lens therefor, of a reflector within the lamp casing, means on the lower portion of said reflector for pivotally supporting it within saidcasing, yielding means for engaging said reflector for exerting a downward pressure thereon and support it in tilted position, and a bellows mounted between said reflector and casing adapted to contract and overcome said yielding means for returning said reflector from its tilted position.

In witness whereof, I have hereunto affixed my signature.

SAMUEL F. ARBUGKLE. 

